Lock.



W. CONEY.

LOCK.

APPLICATION FILED MAY 24, 1915.

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LOCK.

APPLICATION FILED MAY 24, 1915.

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19% new WZMMW sans Jenna on WILLIAM CONEY, OF NEW BRITAIN, CONNECTICUT,ASSIGNOR TO THE AMERICAN HARDWARE CORPORATION, OF NEW BRITAIN,CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK.

Specification of Letters Patent.

Patented Feb. 1, 19116.

Application filed May 24, 1915. Serial No. 29,976.

To all whom it may concern:

Be it known that I, WILLIAM CONEY, a citizen of the United States ofAmerica, residing at New Britain, county of Hartford, State ofConnecticut, have invented a new and usefulLock of which the followingis a specification.

My invention relates tov locks, the object being to provide aself-contained or unitary means whereby by the use of a suitable key thelock may be rendered inoperative as against another key.

This object I attain by an exceedingly simple and eifective means, aswill hereinafter be made clear.

In the accompanying drawings: Figure 1 is a relatively enlarged view inlongitudinal section of a pin cylinder lock equipped with my invention.Fig. 2 is a view of the inner end thereof. Fig. 3 is a section on theline 3-3. Fig. 4 is a view similar to Fig. 1, but showing certain partsin a diflerent position. Fig. 5 is a section on the line 55. Figs. 6 and7 are perspective views of details. Fig. 8 illustrates two differentkeys.

1 is the main body or so called cylinder of the lock.

2 is a rotatable key plug.

3 is the usual cam or roll-back arm at the inner end of the plug. Theplug is provided with the usual key-way arranged to receive the keys 4and 5.

666 are the usual pin tumblers and followers.

No novelty is claimed as to any of the parts thus far described. Thenovelty resides in the embodiment of a shut-out device whereby by theuse of a suitable key the plug 2 is locked against operation.

4 represents the usual key designed to operate the look under normalconditions, while 5 represents what I may term the shutout key.

The inner end of the plug 2 just forward of the cam 3 is suitably shapedto receive a sleeve or ring 7 which is rotatable thereon. This sleevehas a recess or slot 8 into which projects a stop lug 9 to limit itsrotary movement.

10 is a notch at the forward edge of the ring 7 which is arranged toreceive part of the shut-out key 5, said notch being of suflicient widthto permit said key to have a limited free turning movement. On the outersurface of ring 7 is a cupped recess 11 and ad acent thereto is a hole12 having a beveled wall.

14 is a pin tumbler in the rear end of the plug 2 arranged to line upwith the hole 12 I in the ring 7, said pin 14: being of such size orshape that it will not escape through the hole 12.

15 being carried by the cylinder 1 in the,

same plane as the tumbler sections 66 therein and position to cooperatewith the cupped notch 11 and hole 12 in the ring 7.

The key 4 as shown in Fig. 1 is of insuflicient length to operate thering 7, but operates the pin tumblers 6 so that when the key 4 is inplace the plug 2 may be rotated with entire freedom, the ring 7 standingstill, being held in place, for example, by the frictional engagement ofthe pin bolt 15 standing in the cupped notch 11 (see Fig.

To render the plug non-rotatable I employ the shut-out key 5 which is soconstructed as to project under and lift the pin tumbler 14, the saidshut-out key being also bitted to release the locking tumblers 66. Thelower inner end of this key has a shoulder 17 which projects into thenotch 10.

. Now assuming this key 5 is inserted, the

part 17 projects into the notch 10 and the upper edge of the key liftsthe tumbler 1 1, the hitting of the key moving the tumblers 6 to theunlocked position, whereupon the I on the pin tumbler 1 l-then flushwith the 1 adjacent surface of the plug (see Fig. 5).

The key 5 may now be turned back so as to aline the tumblers 6-6. -Whenthe key 5 is now removed the tumbler 14 drops so that the bolt pin 15will drop down from the position shown in Fig. 5 to a position (notshown) in which the lower end of the bolt pin 15 projects into the borecarrying the pin tumbler 14. When in this position, obviously, the plugcannot be turned by the 1nsertion of the usual key 4:. To unlock orrelease the plug, the shut-out key 5 may be in- 5 serted, thus liftingthe bolt pin to the position shown in Fig. 5, so that by acounterclockwise turning movement the plug and ring 7 may be turned backto the original position shown in Fig. 3, the beveled wall of w the hole12 operating as a cam to press back the bolt pin 15 until it mav againdrop into the cupped recess 11. By this very simple expedient I amenabled to provide as a unitary structure, a lock of the pin cylindertype with a self-contained shut-out means, whereby the operation of thelook by the usual key may be prevented.

I have shown the invention only in its preferred form and it should beunderstood may be made without departing from the spirit and scope ofthe invention, it being my intention to cover broadly the use of aso-called shut-out means associated with a lock of the type described asa unitary part thereof. By this arrangement these locks may beassociated with any form of door latch or bolt without the necessity ofmodifying or changing the latch or bolt construction.

What I claim is:

1. In a lock, a main body portion, a rotatable element carried therebyand having a key passage, means for locking said parts against relativerotation, said means being movable by a key to release said parts,whereby the rotatable element may be turned in said body portion, withrotatable auxiliary locking means operating between said body portionand rotatable element for locking said element against movement by saidkey, said auxiliary means being operable by a different key, both keysbeing operable through the same key passage.

2. In a lock, a main body portion, a rotatable element carried thereby,a row of pin tumblers for locking said parts against relative rotation,said tumblers being movable by a key to release said parts whereby saidrotatable element may be turned in said body portion, with rotatableauxiliary means for locking said parts against relative movement by saidkey, said first mentioned locking means and said auxiliary 55 lockingmeans being respectively operated by different keys, and a singlekey-way in said rotatable element for both keys.

3. In a look, a main body portion, a rotatable element carried thereby,means for 60 looking said parts against relative rotation,

said means being movable by a key to release said parts whereby therotatable element may be turned, with auxiliary means for locking saidparts against operation by 85 said key, said auxiliary means beingopthat I contemplate that a variety of changes erable by a difi'erentkey, the auxiliary locking means comprising a movable bolt pin carriedby the main body portion and arranged to project into the rotatableelement, with means for holding said bolt pin out of engagement withsaid rotatable means at certain times.

4. In a lock, a main body portion, a rotatable element carried thereby,means for locking said parts against relative rotation, said means beingmovable by a key to release said parts whereby the rotatable element maybe turned, with auxiliary means for locking said parts against operationby said key, said auxiliary means being operable by a different key, theauxiliary locking means comprising a movable bolt pin carried by themain body portion and arranged to project into the rotatable element,with means for holding said bolt pin out of engagement with saidrotatable means at certain times, said last mentioned means comprising aring mounted to rotate on the rotatable element and arranged between thebolt pin and the rotatable element.

5. In a lock, a main body portion, a ro tatable element carried thereby,means for locking said parts against relative rotation, said means'beingmovable by a key to release said parts whereb the rotatable element maybe turned, with auxiliary means for locking said parts against operationby said key, said auxiliary means being operable by a different key, theauxiliary locking means comprising a movable bolt pin carried by themain body portion and arranged to project into the rotatable element,with means for holding said bolt pin out of engagement with saidrotatable means at certain times, said last mentioned means comprising aring mounted to rotate on the rotatable element and arranged between thebolt pin and the rotatable element, with means for limiting the rotarymovement of the ring.

6. In a look, a main body portion, a rotatable element carried thereby,means for locking said parts against relative rotation, said means beingmovable by a key to re lease said parts whereby the rotatable elementmay be turned, with auxiliary means for locking said parts againstoperation by said key, said auxiliary means being operable by adifferent key, the auxiliary locking means comprising a movable bolt pincarried by the main body portion and arranged to project into therotatable element, with means for holding said bolt pin out ofengagement with said rotatable means at certain times, said lastmentioned means comprising a ring mounted to rotate on the rotatableelement and arranged between the bolt pin and the rotatable element,with means for limiting the rotary movement of the ring, said ringhaving a cupped recess and a perforation adjacent thereto, with meansfor shifting the bolt pin from one to the other as the ring is turned.

7 In a pin cylinder lock, a cylinder, a r0- tatable key-plug mountedtherein, a single row of pin tumblers carried by the said parts andarranged to lock the plug against rotation and arranged to be unlockedby one key, an auxiliary bolt pin carried by said cylinder in the planeof the row of tumblers and arranged to lock the plug against rotationand arranged to be operated by a different key to release said plug.

8. In a pin cylinder lock, a cylinder, a rotatable key-plug mountedtherein, pin tumblers carried by the said parts and arranged to lock theplug against rotation and arranged to be unlocked by one key, anauxiliary bolt pin carried by said cylinder and arranged to lock theplug against rotation at certain times and arranged to be operated by adifferent key to release said plug at certain times, With a hold-outdevice between the plug and the cylinder operated by said different keyto control the position of the bolt pin. i

9. In a pin cylinder lock, a cylinder, a rotatable key plug mountedtherein, a pin tumbler comprising a locking means arranged to lock theplug against rotation in the cylinder, an auxiliary locking meansarranged to lock the plug against movement in the cylinder, With meansfor holding said auxiliary locking means at times out of the lockingposition.

10. In a pin cylinder lock, a cylinder, a rotatable key plug mountedtherein, a pin tumbler comprising a locking means for the plug in thecylinder, an auxiliary locking means to lock the plug against movementin the cylinder, means for holding said auxiliary locking means out ofthe locking position, said means being key controlled by a key capableof simultaneously operating thereon and on said pin tumbler.

WILLIAM CONEY.

